{"product_id":"51201795-800-processor-circuit-board-honeywell","title":"51201795-800 Processor Circuit Board | Honeywell","description":"\u003cp\u003eConfigured for high-speed data execution in control system architectures, the \u003cstrong\u003eHoneywell 51201795-800\u003c\/strong\u003e (\u003cstrong\u003e51201795-800\u003c\/strong\u003e Processor Circuit Board) provides direct physical execution of logic processing using the integrated 68020 microprocessor architecture. The module serves as a primary processing unit utilized to execute instruction sets and memory management tasks across Honeywell control platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51201795-800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.15 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e8 MB DIMM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control and Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe 51201795-800 module incorporates advanced memory addressing capabilities via its 8 MB DIMM configuration to support intensive process control algorithms. In DCS environments, this processor manages the real-time interaction between controller backplane traffic and field instrumentation data. The board design emphasizes channel-to-channel isolation on the data bus to mitigate electromagnetic interference (EMI) and prevent signal corruption during peak processing cycles. Furthermore, the architecture supports 4-20 mA HART loop protocol integration by ensuring that communication latency between the 68020 processor and peripheral I\/O modules remains within deterministic timing constraints. Cold junction compensation (CJC) for temperature-sensitive inputs is offloaded to localized interface cards, allowing this processor to focus on high-speed logic execution and system diagnostics.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does this processor board support hot-swapping while the controller rack is powered?\u003c\/p\u003e\n\u003cp\u003eA: No. The 51201795-800 is intended for fixed installation. Removal or insertion under power will trigger backplane bus faults, potentially resulting in data loss or permanent damage to the processor's I\/O pins and bus interface logic.\u003c\/p\u003e\n\u003cp\u003eQ: Is the 8 MB DIMM memory field-replaceable or expandable?\u003c\/p\u003e\n\u003cp\u003eA: The memory configuration is verified at the factory for specific instruction set compatibility. Field modification of the 8 MB DIMM is not supported, as this can lead to memory addressing conflicts or firmware boot-up failures.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize the controller rack and verify that no residual voltage remains on the backplane before installation.\u003c\/li\u003e\n\u003cli\u003eAlign the circuit board with the correct chassis slot guides to prevent bending the pins on the backplane connector.\u003c\/li\u003e\n\u003cli\u003eApply firm, balanced pressure to the board edges to ensure the connector is fully seated.\u003c\/li\u003e\n\u003cli\u003eSecure the faceplate screws to the rack frame to establish a rigid ground connection, which is required for effective EMI suppression.\u003c\/li\u003e\n\u003cli\u003ePerform a system diagnostic check upon power-up to confirm the processor is successfully initialized and memory parity checks are passed.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52975989457205,"sku":"51201795-800","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51201795-800.png?v=1780990274","url":"https:\/\/www.5gplc.com\/products\/51201795-800-processor-circuit-board-honeywell","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}